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Advent calendar 2015
8 December
All 2015 advent puzzles
~
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What is the largest number of factors which a number less than a million has?
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720720 has 240 factors.
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consecutive numbers
sets
shapes
integers
digital clocks
fractions
squares
grids
even numbers
logic
cubics
advent
routes
people maths
clocks
gerrymandering
area
palindromes
folding tube maps
digital products
quadratics
quadrilaterals
surds
axes
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geometric mean
sums
speed
remainders
ave
prime numbers
differentiation
division
number
triangle numbers
parabolas
square grids
range
calculus
percentages
pascal's triangle
multiples
dice
perimeter
powers
albgebra
star numbers
coordinates
ellipses
tournaments
pentagons
planes
binary
probabilty
factorials
regular shapes
combinatorics
christmas
lines
circles
factors
means
prime factors
irreducible numbers
dates
colouring
averages
decahedra
complex numbers
medians
sport
cards
dominos
consecutive integers
taxicab geometry
expansions
volume
sequences
graphs
integration
shape
xor
time
sum to infinity
algebra
square numbers
square roots
floors
perfect numbers
dodecagons
indices
crossnumbers
odd numbers
probability
matrices
geometric means
numbers
doubling
cube numbers
chess
scales
arrows
neighbours
polynomials
cryptic clues
symmetry
multiplaction squares
coins
wordplay
hexagons
chocolate
rectangles
multiplication
angles
addition
determinants
lists
2d shapes
unit fractions
median
polygons
tangents
money
digits
spheres
chalkdust crossnumber
games
tiling
the only crossnumber
products
cryptic crossnumbers
geometry
bases
menace
functions
balancing
trigonometry
crosswords
mean
3d shapes
partitions
elections
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rugby
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